Question Number 196185 by cortano12 last updated on 19/Aug/23 | ||
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Answered by horsebrand11 last updated on 19/Aug/23 | ||
$$\:\Rightarrow\mathrm{x}^{\mathrm{2}} \:=\:\mathrm{y}^{\frac{\mathrm{2b}}{\mathrm{a}}} \:\mathrm{and}\:\mathrm{z}=\mathrm{y}^{\frac{\mathrm{b}}{\mathrm{c}}} \\ $$$$\:\:\mathrm{then}\:\mathrm{y}^{\frac{\mathrm{2b}}{\mathrm{a}}} \:=\:\mathrm{y}^{\mathrm{1}+\frac{\mathrm{b}}{\mathrm{c}}} \\ $$$$\:\:\frac{\mathrm{2b}}{\mathrm{a}}\:=\:\frac{\mathrm{b}+\mathrm{c}}{\mathrm{c}}\Rightarrow\:\mathrm{ab}+\mathrm{ca}\:=\:\mathrm{2bc} \\ $$$$\:\mathrm{so}\:\frac{\mathrm{ab}+\mathrm{bc}+\mathrm{ca}}{\mathrm{bc}}\:=\:\frac{\mathrm{3bc}}{\mathrm{bc}}\:=\:\mathrm{3} \\ $$ | ||